DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 465

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

14.5
14.5.1
Figure 14.3 shows the TWCNT count timing.
14.5.2
Setting the START bit in TWCR2 to 1 starts duty measurement and then clears TWCNT. Figure
14.4 shows the TWCNT clear timing.
Internal clock
Clear signal
START bit
input clock
TWCNT
TWCNT
TWCNT
Operation Timing
TWCNT Count Timing
TWCNT Clear Timing by Setting START Bit
N-1
Figure 14.4 TWCNT Clear Timing by Setting START Bit
Figure 14.3 TWCNT Count Timing
N
N
Rev.2.00 May. 28, 2009 Page 425 of 732
N'00
REJ09B0059-0200
N-1